Global Study Maps Uneven Rise of Cancer Trials Across Low- and Middle-Income Countries
Researchers report that economic growth alone does not account for where research capacity expands.
Overview
- An analysis of ClinicalTrials.gov and World Bank data from 2001 to 2020 identified 16,977 registered cancer trials in low- and middle-income countries.
- Registrations rose from 1,053 in 2001–2005 to 7,661 in 2016–2020, reflecting substantial absolute growth.
- Despite the increases, cancer clinical research remains disproportionately concentrated in high-income countries.
- China and South Korea recorded sustained growth with more complex, independent studies, while India, Thailand and Vietnam showed inconsistent patterns.
- Argentina, Brazil and Mexico boosted trial registrations despite economic stagnation, and Egypt’s rise contrasted with South Africa’s lack of correlation.